package com.lzj.admin.inteceptor;

import com.lzj.admin.pojo.User;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @Author: Joseph Xu
 * @Date: 2023/1/7 18:38
 */
public class NoLoginInterceptor implements HandlerInterceptor{

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        User user = (User) request.getSession().getAttribute("user");
        if (null == user){
            /**
             * 用户未登录或者session过期
             */
            response.sendRedirect("index");

        }

        return false;
    }
}
